結果
問題 | No.144 エラトステネスのざる |
ユーザー | eSeF |
提出日時 | 2020-06-12 12:53:50 |
言語 | C#(csc) (csc 3.9.0) |
結果 |
AC
|
実行時間 | 90 ms / 2,000 ms |
コード長 | 7,426 bytes |
コンパイル時間 | 1,386 ms |
コンパイル使用メモリ | 121,800 KB |
実行使用メモリ | 35,748 KB |
最終ジャッジ日時 | 2024-06-24 03:48:19 |
合計ジャッジ時間 | 3,147 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 31 ms
28,216 KB |
testcase_01 | AC | 32 ms
28,388 KB |
testcase_02 | AC | 31 ms
26,420 KB |
testcase_03 | AC | 31 ms
26,592 KB |
testcase_04 | AC | 32 ms
26,472 KB |
testcase_05 | AC | 31 ms
26,164 KB |
testcase_06 | AC | 31 ms
28,252 KB |
testcase_07 | AC | 30 ms
26,460 KB |
testcase_08 | AC | 30 ms
26,292 KB |
testcase_09 | AC | 30 ms
26,204 KB |
testcase_10 | AC | 31 ms
26,076 KB |
testcase_11 | AC | 32 ms
26,236 KB |
testcase_12 | AC | 30 ms
26,160 KB |
testcase_13 | AC | 85 ms
33,592 KB |
testcase_14 | AC | 83 ms
33,612 KB |
testcase_15 | AC | 84 ms
33,748 KB |
testcase_16 | AC | 87 ms
31,312 KB |
testcase_17 | AC | 86 ms
33,604 KB |
testcase_18 | AC | 90 ms
35,748 KB |
testcase_19 | AC | 84 ms
33,744 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;using System.Collections.Generic;using System.Linq;using System.IO;using System.Text;using System.Numerics;using System.Threading;using static System.Math;using static System.Array;using static AtCoder.IO_ShortCut;using static AtCoder.Tool;using static AtCoder.ModInt;namespace AtCoder{class AC{const int MOD = 1000000007;//const int MOD = 998244353;const int INF = int.MaxValue / 2;const long SINF = long.MaxValue / 2;const double EPS = 1e-8;static readonly int[] dI = { 0, 1, 0, -1, 1, -1, -1, 1 };static readonly int[] dJ = { 1, 0, -1, 0, 1, 1, -1, -1 };//static List<List<int>> G = new List<List<int>>();static List<List<Edge>> G = new List<List<Edge>>();//static List<Edge> E = new List<Edge>();static void Main(string[] args){var sw = new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }; Console.SetOut(sw);/*var th = new Thread(Run, 1 << 26);th.Start();th.Join();*/Run();Console.Out.Flush();}static void Run(){int Testcase = 1;for (var _ = 0; _ < Testcase; _++) Solve();}static void Solve(){int N;double p;Input(out N, out p);var prob = new double[N + 1];Initialize(ref prob, 1.0);double ans = 0;for(var i = 2; i <= N; i++){ans += prob[i];for(var j = 2 * i; j <= N; j += i){prob[j] *= (1 - p);}}//Out_Sep(prob);OutL(ans);}public struct Edge{public int from;public int to;public long dist;public Edge(int t, long c){from = -1;to = t;dist = c;}public Edge(int f, int t, long c){from = f;to = t;dist = c;}}}struct ModInt{public long value;private const int MOD = 1000000007;//private const int MOD = 998244353;public ModInt(long value) { this.value = value; }public static implicit operator ModInt(long a){var ret = a % MOD;return new ModInt(ret < 0 ? (ret + MOD) : ret);}public static ModInt operator +(ModInt a, ModInt b) => (a.value + b.value);public static ModInt operator -(ModInt a, ModInt b) => (a.value - b.value);public static ModInt operator *(ModInt a, ModInt b) => (a.value * b.value);public static ModInt operator /(ModInt a, ModInt b) => a * Modpow(b, MOD - 2);public static ModInt operator <<(ModInt a, int n) => (a.value << n);public static ModInt operator >>(ModInt a, int n) => (a.value >> n);public static ModInt operator ++(ModInt a) => a.value + 1;public static ModInt operator --(ModInt a) => a.value - 1;public static ModInt Modpow(ModInt a, long n){var k = a;ModInt ret = 1;while (n > 0){if ((n & 1) != 0) ret *= k;k *= k;n >>= 1;}return ret;}private static readonly List<long> Factorials = new List<long>() { 1 };public static ModInt Fac(long n){for (var i = Factorials.Count(); i <= n; i++){Factorials.Add((Factorials[i - 1] * i) % MOD);}return Factorials[(int)n];}public static ModInt nCr(long n, long r){return n < r ? 0 : Fac(n) / (Fac(r) * Fac(n - r));}public static explicit operator int(ModInt a) => (int)a.value;}static class IO_ShortCut{public static string[] _ReadSplit => Console.ReadLine().Split();public static int[] _ReadSplitInt => ConvertAll(Console.ReadLine().Split(), int.Parse);public static long[] _ReadSplitLong => ConvertAll(Console.ReadLine().Split(), long.Parse);public static double[] _ReadSplit_Double => ConvertAll(Console.ReadLine().Split(), double.Parse);public static string Str => Console.ReadLine();public static int Int => int.Parse(Console.ReadLine());public static long Long => long.Parse(Console.ReadLine());public static double Double => double.Parse(Console.ReadLine());public static T Conv<T>(string input){if (typeof(T).Equals(typeof(ModInt))){return (T)(dynamic)(long.Parse(input));}return (T)Convert.ChangeType(input, typeof(T));}public static void Input<T>(out T a) => a = Conv<T>(Console.ReadLine());public static void Input<T, U>(out T a, out U b){ var q = _ReadSplit; a = Conv<T>(q[0]); b = Conv<U>(q[1]); }public static void Input<T, U, V>(out T a, out U b, out V c){ var q = _ReadSplit; a = Conv<T>(q[0]); b = Conv<U>(q[1]); c = Conv<V>(q[2]); }public static void Input<T, U, V, W>(out T a, out U b, out V c, out W d){ var q = _ReadSplit; a = Conv<T>(q[0]); b = Conv<U>(q[1]); c = Conv<V>(q[2]); d = Conv<W>(q[3]); }public static void Input<T, U, V, W, X>(out T a, out U b, out V c, out W d, out X e){ var q = _ReadSplit; a = Conv<T>(q[0]); b = Conv<U>(q[1]); c = Conv<V>(q[2]); d = Conv<W>(q[3]); e = Conv<X>(q[4]); }public static void OutL(object s) => Console.WriteLine(s);public static void Out_Sep<T>(IEnumerable<T> s) => Console.WriteLine(string.Join(" ", s));public static void Out_Sep<T>(IEnumerable<T> s, string sep) => Console.WriteLine(string.Join($"{sep}", s));public static void Out_Sep(params object[] s) => Console.WriteLine(string.Join(" ", s));public static void Out_One(object s) => Console.Write($"{s} ");public static void Out_One(object s, string sep) => Console.Write($"{s}{sep}");public static void Endl() => Console.WriteLine();}public static class Tool{static public void Initialize<T>(ref T[] array, T initialvalue){array = ConvertAll(array, x => initialvalue);}static public void Swap<T>(ref T a, ref T b){T keep = a;a = b;b = keep;}static public void Display<T>(T[,] array2d, int n, int m){for (var i = 0; i < n; i++){for (var j = 0; j < m; j++){Console.Write($"{array2d[i, j]} ");}Console.WriteLine();}}static public long Gcd(long a, long b){if (a == 0 || b == 0) return Max(a, b);return a % b == 0 ? b : Gcd(b, a % b);}static public long LPow(int a, int b) => (long)Pow(a, b);static public bool Bit(long x, int dig) => ((1L << dig) & x) != 0;static public int Sig(long a) => a == 0 ? 0 : (int)(a / Abs(a));}}